| 摘要 |
1,245,986. Continuous addition of catalyst and chain-transfer agent in the emulsion polymerization of conjugated dienes. SOC. NATIONALE DES PETROLES D'AQUITAINE. 19 Nov., 1968 [20 Nov., 1967], No. 54868/68. Heading C3P. A conjugated diene is polymerized in aqueous emulsion in the presence of a Redox system and a chain transfer agent by a process characterized in that the Redox catalyst and the chain transfer agent are introduced continuously into the reaction medium, the whole polymerization rate is regulated by the addition of emulsifier and/or catalyst to a value of at least 6% of the monomer per hour, and the polymerization is carried out to 70-90% conversion of the monomer.
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